# What this PR does
In `AlertGroupFilter` we currently have 11 duplicate queries which add
~1-2secs of unecessary request latency to `GET
/api/internal/v1/alertgroups` calls.

The queries originate from the `queryset` callable arguments on several
of the fields of the `AlertGroupFilter` class. These callables basically
filter down their respective querysets to include only objects that
belong to the currently authenticated user's organization.
The duplicate queries are
- 2 queries to fetch integrations
- 2 queries to fetch escalation chains
- 10 queries to fetch users
At the moment, this PR is still a draft and doesn't work as intended.
It's based off of [a suggestion from this
discussion](https://github.com/carltongibson/django-filter/discussions/1572#discussioncomment-5676042)
in the `django-filter` repo. See [this DjangoCon
talk](https://youtu.be/e52S1SjuUeM?t=841) for more context.
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Co-authored-by: Ildar Iskhakov <Ildar.iskhakov@grafana.com>